generic-library/vpx
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Removing alg_priv from vpx_codec_priv struct.

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In order to understand memory layout consider the declaration of the
following structs. The first one is a part of our API:

struct vpx_codec_ctx {
  // ...
  struct vpx_codec_priv *priv;
};

The second one is defined in vpx_codec_internal.h:

struct vpx_codec_priv {
  // ...
};

The following struct is defined 4 times for encoder/decoder VP8/VP9:

struct vpx_codec_alg_priv {
  struct vpx_codec_priv base;
  // ... 
};

Private data allocation for the given ctx:

struct vpx_codec_ctx *ctx = <get>
struct vpx_codec_alg_priv *alg_priv = <allocate>
ctx->priv = (struct vpx_codec_priv *)alg_priv;

The cast works because vpx_codec_alg_priv has a
vpx_codec_priv instance as a first member 'base'.

Change-Id: I10d1afc8c9a7dfda50baade8c7b0296678bdb0d0
This commit is contained in:
Dmitry Kovalev 2014-08-20 17:02:10 -07:00
parent e9d106bd45
commit 73edeb03ea
8 changed files with 78 additions and 88 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
vp8/vp8_cx_iface.c
View File

@ -620,7 +620,6 @@ static vpx_codec_err_t vp8e_init(vpx_codec_ctx_t *ctx,
{
vpx_codec_err_t res = VPX_CODEC_OK;
struct vpx_codec_alg_priv *priv;
struct VP8_COMP *optr;
vp8_rtcd();
@ -633,9 +632,8 @@ static vpx_codec_err_t vp8e_init(vpx_codec_ctx_t *ctx,
return VPX_CODEC_MEM_ERROR;
}
ctx->priv = &priv->base;
ctx->priv->sz = sizeof(*ctx->priv);
ctx->priv->alg_priv = priv;
ctx->priv = (vpx_codec_priv_t *)priv;
ctx->priv->sz = sizeof(struct vpx_codec_alg_priv);
ctx->priv->init_flags = ctx->init_flags;
if (ctx->config.enc)
@ -643,11 +641,10 @@ static vpx_codec_err_t vp8e_init(vpx_codec_ctx_t *ctx,
/* Update the reference to the config structure to an
* internal copy.
*/
ctx->priv->alg_priv->cfg = *ctx->config.enc;
ctx->config.enc = &ctx->priv->alg_priv->cfg;
priv->cfg = *ctx->config.enc;
ctx->config.enc = &priv->cfg;
}
priv->vp8_cfg = default_extracfg;
priv->vp8_cfg.pkt_list = &priv->pkt_list.head;
@ -671,17 +668,10 @@ static vpx_codec_err_t vp8e_init(vpx_codec_ctx_t *ctx,
if (!res)
{
set_vp8e_config(&ctx->priv->alg_priv->oxcf,
ctx->priv->alg_priv->cfg,
ctx->priv->alg_priv->vp8_cfg,
mr_cfg);
optr = vp8_create_compressor(&ctx->priv->alg_priv->oxcf);
if (!optr)
set_vp8e_config(&priv->oxcf, priv->cfg, priv->vp8_cfg, mr_cfg);
priv->cpi = vp8_create_compressor(&priv->oxcf);
if (!priv->cpi)
res = VPX_CODEC_MEM_ERROR;
else
ctx->priv->alg_priv->cpi = optr;
}
}

52
vp8/vp8_dx_iface.c
View File

@ -80,29 +80,32 @@ static unsigned long vp8_priv_sz(const vpx_codec_dec_cfg_t *si, vpx_codec_flags_
static void vp8_init_ctx(vpx_codec_ctx_t *ctx)
{
ctx->priv =
(vpx_codec_priv_t *)vpx_memalign(8, sizeof(vpx_codec_alg_priv_t));
vpx_memset(ctx->priv, 0, sizeof(vpx_codec_alg_priv_t));
vpx_codec_alg_priv_t *priv =
(vpx_codec_alg_priv_t *)vpx_memalign(8, sizeof(*priv));
vpx_memset(priv, 0, sizeof(*priv));
ctx->priv = (vpx_codec_priv_t *)priv;
ctx->priv->sz = sizeof(*ctx->priv);
ctx->priv->alg_priv = (vpx_codec_alg_priv_t *)ctx->priv;
ctx->priv->alg_priv->si.sz = sizeof(ctx->priv->alg_priv->si);
ctx->priv->alg_priv->decrypt_cb = NULL;
ctx->priv->alg_priv->decrypt_state = NULL;
ctx->priv->alg_priv->flushed = 0;
ctx->priv->init_flags = ctx->init_flags;
priv->si.sz = sizeof(priv->si);
priv->decrypt_cb = NULL;
priv->decrypt_state = NULL;
priv->flushed = 0;
if (ctx->config.dec)
{
/* Update the reference to the config structure to an internal copy. */
ctx->priv->alg_priv->cfg = *ctx->config.dec;
ctx->config.dec = &ctx->priv->alg_priv->cfg;
priv->cfg = *ctx->config.dec;
ctx->config.dec = &priv->cfg;
}
}
static vpx_codec_err_t vp8_init(vpx_codec_ctx_t *ctx,
vpx_codec_priv_enc_mr_cfg_t *data)
{
vpx_codec_err_t res = VPX_CODEC_OK;
vpx_codec_err_t res = VPX_CODEC_OK;
vpx_codec_alg_priv_t *priv = NULL;
(void) data;
vp8_rtcd();
@ -114,29 +117,30 @@ static vpx_codec_err_t vp8_init(vpx_codec_ctx_t *ctx,
if (!ctx->priv)
{
vp8_init_ctx(ctx);
priv = (vpx_codec_alg_priv_t *)ctx->priv;
/* initialize number of fragments to zero */
ctx->priv->alg_priv->fragments.count = 0;
priv->fragments.count = 0;
/* is input fragments enabled? */
ctx->priv->alg_priv->fragments.enabled =
(ctx->priv->alg_priv->base.init_flags &
VPX_CODEC_USE_INPUT_FRAGMENTS);
priv->fragments.enabled =
(priv->base.init_flags & VPX_CODEC_USE_INPUT_FRAGMENTS);
/*post processing level initialized to do nothing */
}
else
{
priv = (vpx_codec_alg_priv_t *)ctx->priv;
}
ctx->priv->alg_priv->yv12_frame_buffers.use_frame_threads =
(ctx->priv->alg_priv->base.init_flags &
VPX_CODEC_USE_FRAME_THREADING);
priv->yv12_frame_buffers.use_frame_threads =
(ctx->priv->init_flags & VPX_CODEC_USE_FRAME_THREADING);
/* for now, disable frame threading */
ctx->priv->alg_priv->yv12_frame_buffers.use_frame_threads = 0;
priv->yv12_frame_buffers.use_frame_threads = 0;
if(ctx->priv->alg_priv->yv12_frame_buffers.use_frame_threads &&
(( ctx->priv->alg_priv->base.init_flags &
VPX_CODEC_USE_ERROR_CONCEALMENT)
|| ( ctx->priv->alg_priv->base.init_flags &
VPX_CODEC_USE_INPUT_FRAGMENTS) ) )
if (priv->yv12_frame_buffers.use_frame_threads &&
((ctx->priv->init_flags & VPX_CODEC_USE_ERROR_CONCEALMENT) ||
(ctx->priv->init_flags & VPX_CODEC_USE_INPUT_FRAGMENTS)))
{
/* row-based threading, error concealment, and input fragments will
* not be supported when using frame-based threading */

33
vp9/vp9_cx_iface.c
View File

@ -644,41 +644,34 @@ static vpx_codec_err_t encoder_init(vpx_codec_ctx_t *ctx,
(void)data;
if (ctx->priv == NULL) {
struct vpx_codec_alg_priv *priv = calloc(1, sizeof(*priv));
vpx_codec_alg_priv_t *const alg_priv = calloc(1, sizeof(*alg_priv));
if (priv == NULL)
if (alg_priv == NULL)
return VPX_CODEC_MEM_ERROR;
ctx->priv = &priv->base;
ctx->priv->sz = sizeof(*ctx->priv);
ctx->priv->alg_priv = priv;
ctx->priv = (vpx_codec_priv_t *)alg_priv;
ctx->priv->sz = sizeof(vpx_codec_alg_priv_t);
ctx->priv->init_flags = ctx->init_flags;
ctx->priv->enc.total_encoders = 1;
if (ctx->config.enc) {
// Update the reference to the config structure to an internal copy.
ctx->priv->alg_priv->cfg = *ctx->config.enc;
ctx->config.enc = &ctx->priv->alg_priv->cfg;
alg_priv->cfg = *ctx->config.enc;
ctx->config.enc = &alg_priv->cfg;
}
priv->extra_cfg = default_extra_cfg;
alg_priv->extra_cfg = default_extra_cfg;
vp9_initialize_enc();
res = validate_config(priv, &priv->cfg, &priv->extra_cfg);
res = validate_config(alg_priv, &alg_priv->cfg, &alg_priv->extra_cfg);
if (res == VPX_CODEC_OK) {
VP9_COMP *cpi;
set_encoder_config(&ctx->priv->alg_priv->oxcf,
&ctx->priv->alg_priv->cfg,
&ctx->priv->alg_priv->extra_cfg);
cpi = vp9_create_compressor(&ctx->priv->alg_priv->oxcf);
if (cpi == NULL) {
set_encoder_config(&alg_priv->oxcf, &alg_priv->cfg, &alg_priv->extra_cfg);
alg_priv->cpi = vp9_create_compressor(&alg_priv->oxcf);
if (alg_priv->cpi == NULL)
res = VPX_CODEC_MEM_ERROR;
} else {
cpi->output_pkt_list = &priv->pkt_list.head;
ctx->priv->alg_priv->cpi = cpi;
}
else
alg_priv->cpi->output_pkt_list = &alg_priv->pkt_list.head;
}
}

21
vp9/vp9_dx_iface.c
View File

@ -58,28 +58,25 @@ static vpx_codec_err_t decoder_init(vpx_codec_ctx_t *ctx,
(void)data;
if (!ctx->priv) {
vpx_codec_alg_priv_t *alg_priv = vpx_memalign(32, sizeof(*alg_priv));
vpx_codec_alg_priv_t *const alg_priv = vpx_memalign(32, sizeof(*alg_priv));
if (alg_priv == NULL)
return VPX_CODEC_MEM_ERROR;
vp9_zero(*alg_priv);
ctx->priv = (vpx_codec_priv_t *)alg_priv;
ctx->priv->sz = sizeof(*ctx->priv);
ctx->priv->alg_priv = alg_priv;
ctx->priv->alg_priv->si.sz = sizeof(ctx->priv->alg_priv->si);
ctx->priv->sz = sizeof(*alg_priv);
ctx->priv->init_flags = ctx->init_flags;
ctx->priv->alg_priv->flushed = 0;
ctx->priv->alg_priv->frame_parallel_decode =
(ctx->init_flags & VPX_CODEC_USE_FRAME_THREADING);
// Disable frame parallel decoding for now.
ctx->priv->alg_priv->frame_parallel_decode = 0;
alg_priv->si.sz = sizeof(alg_priv->si);
alg_priv->flushed = 0;
alg_priv->frame_parallel_decode =
(ctx->init_flags & VPX_CODEC_USE_FRAME_THREADING);
alg_priv->frame_parallel_decode = 0; // Disable for now
if (ctx->config.dec) {
// Update the reference to the config structure to an internal copy.
ctx->priv->alg_priv->cfg = *ctx->config.dec;
ctx->config.dec = &ctx->priv->alg_priv->cfg;
alg_priv->cfg = *ctx->config.dec;
ctx->config.dec = &alg_priv->cfg;
}
}

1
vpx/internal/vpx_codec_internal.h
View File

@ -336,7 +336,6 @@ typedef struct vpx_codec_priv_cb_pair {
*/
struct vpx_codec_priv {
unsigned int sz;
struct vpx_codec_alg_priv *alg_priv;
const char *err_detail;
vpx_codec_flags_t init_flags;
struct {

5
vpx/src/vpx_codec.c
View File

@ -88,8 +88,7 @@ vpx_codec_err_t vpx_codec_destroy(vpx_codec_ctx_t *ctx) {
else if (!ctx->iface || !ctx->priv)
res = VPX_CODEC_ERROR;
else {
if (ctx->priv->alg_priv)
ctx->iface->destroy(ctx->priv->alg_priv);
ctx->iface->destroy((vpx_codec_alg_priv_t *)ctx->priv);
ctx->iface = NULL;
ctx->name = NULL;
@ -125,7 +124,7 @@ vpx_codec_err_t vpx_codec_control_(vpx_codec_ctx_t *ctx,
va_list ap;
va_start(ap, ctrl_id);
res = entry->fn(ctx->priv->alg_priv, ap);
res = entry->fn((vpx_codec_alg_priv_t *)ctx->priv, ap);
va_end(ap);
break;
}

14
vpx/src/vpx_decoder.c
View File

@ -18,6 +18,10 @@
#define SAVE_STATUS(ctx,var) (ctx?(ctx->err = var):var)
static vpx_codec_alg_priv_t *get_alg_priv(vpx_codec_ctx_t *ctx) {
return (vpx_codec_alg_priv_t *)ctx->priv;
}
vpx_codec_err_t vpx_codec_dec_init_ver(vpx_codec_ctx_t *ctx,
vpx_codec_iface_t *iface,
const vpx_codec_dec_cfg_t *cfg,
@ -94,7 +98,7 @@ vpx_codec_err_t vpx_codec_get_stream_info(vpx_codec_ctx_t *ctx,
si->w = 0;
si->h = 0;
res = ctx->iface->dec.get_si(ctx->priv->alg_priv, si);
res = ctx->iface->dec.get_si(get_alg_priv(ctx), si);
}
return SAVE_STATUS(ctx, res);
@ -115,8 +119,8 @@ vpx_codec_err_t vpx_codec_decode(vpx_codec_ctx_t *ctx,
else if (!ctx->iface || !ctx->priv)
res = VPX_CODEC_ERROR;
else {
res = ctx->iface->dec.decode(ctx->priv->alg_priv, data, data_sz,
user_priv, deadline);
res = ctx->iface->dec.decode(get_alg_priv(ctx), data, data_sz, user_priv,
deadline);
}
return SAVE_STATUS(ctx, res);
@ -129,7 +133,7 @@ vpx_image_t *vpx_codec_get_frame(vpx_codec_ctx_t *ctx,
if (!ctx || !iter || !ctx->iface || !ctx->priv)
img = NULL;
else
img = ctx->iface->dec.get_frame(ctx->priv->alg_priv, iter);
img = ctx->iface->dec.get_frame(get_alg_priv(ctx), iter);
return img;
}
@ -185,7 +189,7 @@ vpx_codec_err_t vpx_codec_set_frame_buffer_functions(
!(ctx->iface->caps & VPX_CODEC_CAP_EXTERNAL_FRAME_BUFFER)) {
res = VPX_CODEC_ERROR;
} else {
res = ctx->iface->dec.set_fb_fn(ctx->priv->alg_priv, cb_get, cb_release,
res = ctx->iface->dec.set_fb_fn(get_alg_priv(ctx), cb_get, cb_release,
cb_priv);
}

16
vpx/src/vpx_encoder.c
View File

@ -20,6 +20,10 @@
#define SAVE_STATUS(ctx,var) (ctx?(ctx->err = var):var)
static vpx_codec_alg_priv_t *get_alg_priv(vpx_codec_ctx_t *ctx) {
return (vpx_codec_alg_priv_t *)ctx->priv;
}
vpx_codec_err_t vpx_codec_enc_init_ver(vpx_codec_ctx_t *ctx,
vpx_codec_iface_t *iface,
const vpx_codec_enc_cfg_t *cfg,
@ -216,7 +220,7 @@ vpx_codec_err_t vpx_codec_encode(vpx_codec_ctx_t *ctx,
FLOATING_POINT_INIT();
if (num_enc == 1)
res = ctx->iface->enc.encode(ctx->priv->alg_priv, img, pts,
res = ctx->iface->enc.encode(get_alg_priv(ctx), img, pts,
duration, flags, deadline);
else {
/* Multi-resolution encoding:
@ -230,7 +234,7 @@ vpx_codec_err_t vpx_codec_encode(vpx_codec_ctx_t *ctx,
if (img) img += num_enc - 1;
for (i = num_enc - 1; i >= 0; i--) {
if ((res = ctx->iface->enc.encode(ctx->priv->alg_priv, img, pts,
if ((res = ctx->iface->enc.encode(get_alg_priv(ctx), img, pts,
duration, flags, deadline)))
break;
@ -259,7 +263,7 @@ const vpx_codec_cx_pkt_t *vpx_codec_get_cx_data(vpx_codec_ctx_t *ctx,
else if (!(ctx->iface->caps & VPX_CODEC_CAP_ENCODER))
ctx->err = VPX_CODEC_INCAPABLE;
else
pkt = ctx->iface->enc.get_cx_data(ctx->priv->alg_priv, iter);
pkt = ctx->iface->enc.get_cx_data(get_alg_priv(ctx), iter);
}
if (pkt && pkt->kind == VPX_CODEC_CX_FRAME_PKT) {
@ -327,7 +331,7 @@ const vpx_image_t *vpx_codec_get_preview_frame(vpx_codec_ctx_t *ctx) {
else if (!ctx->iface->enc.get_preview)
ctx->err = VPX_CODEC_INCAPABLE;
else
img = ctx->iface->enc.get_preview(ctx->priv->alg_priv);
img = ctx->iface->enc.get_preview(get_alg_priv(ctx));
}
return img;
@ -345,7 +349,7 @@ vpx_fixed_buf_t *vpx_codec_get_global_headers(vpx_codec_ctx_t *ctx) {
else if (!ctx->iface->enc.get_glob_hdrs)
ctx->err = VPX_CODEC_INCAPABLE;
else
buf = ctx->iface->enc.get_glob_hdrs(ctx->priv->alg_priv);
buf = ctx->iface->enc.get_glob_hdrs(get_alg_priv(ctx));
}
return buf;
@ -361,7 +365,7 @@ vpx_codec_err_t vpx_codec_enc_config_set(vpx_codec_ctx_t *ctx,
else if (!(ctx->iface->caps & VPX_CODEC_CAP_ENCODER))
res = VPX_CODEC_INCAPABLE;
else
res = ctx->iface->enc.cfg_set(ctx->priv->alg_priv, cfg);
res = ctx->iface->enc.cfg_set(get_alg_priv(ctx), cfg);
return SAVE_STATUS(ctx, res);
}